Gpon ni iki?

Ikoranabuhanga rya GPON (Gigabit-Capable PON) nigisekuru gishya cya Broadband passive optique ihuriweho na tekinoroji ishingiye kuri ITU-TG.984.x. Ifite ibyiza byinshi nkumuyoboro mwinshi, gukora neza, gukwirakwiza cyane, hamwe nabakoresha interineti. Abakoresha benshi babifata nk'ikoranabuhanga ryiza ryo kumenya umurongo mugari no guhindura byimazeyo serivisi za serivise. GPON yatanzwe bwa mbere n’umuryango wuzuye wa serivisi (FSAN) muri Nzeri 2002. Hashingiwe kuri ibyo, ITU-T yarangije gushyiraho ITU-TG.984.1 na G.984.2 muri Werurwe 2003., Ibipimo bya G.984.3. cyarangiye muri Gashyantare na Kamena 2004, bityo kigira umuryango usanzwe wa GPON.

Epon ni iki?

EPON (Ethernet Passive Optical Network), nkuko izina ribigaragaza, ni tekinoroji ya Ethernet. Ifata ingingo-kuri-kugwiza imiterere, pasiporo optique ya fibre yoherejwe, kandi itanga serivisi zitandukanye kuri Ethernet. Ikoranabuhanga rya EPON risanzwe nitsinda rya IEEE802.3 EFM. Muri kamena 2004, itsinda ryakazi rya IEEE802.3EFM ryasohoye ibipimo bya EPON - IEEE802.3ah (byinjijwe mubipimo bya IEEE802.3-2005 muri 2005). Muri iki gipimo, tekinoroji ya Ethernet na PON ihuriweho, tekinoroji ya PON ikoreshwa murwego rwumubiri, protocole ya Ethernet ikoreshwa murwego rwo guhuza amakuru, kandi kwinjira kwa Ethernet bigerwaho hakoreshejwe topologiya ya PON. Kubwibyo, ikomatanya ibyiza byikoranabuhanga rya PON nubuhanga bwa Ethernet: igiciro gito, umurongo mwinshi, ubunini bukomeye, guhuza na Ethernet ihari, hamwe nubuyobozi bworoshye.